Electronic device with protection cover

1. An electronic device, comprising:

a main body;

a cap body movably disposed on the main body, wherein the cap body is capable of moving between a first position and a second position on the main body, and rotating with respect to the main body in the second position;

a flexible printed circuit board connecting to the main body and the cap body; and

a protection cover slidably disposed on the cap body and having a receiving space, wherein as the cap body rotates in the second position, part of the flexible printed circuit board is within the receiving space and protected by the protection cover.

2. The electronic device according to claim 1 , wherein the protection cover comprises a bottom plate and two side plates, the two side plates connect with two edges of the bottom plate to form the receiving space.

3. The electronic device according to claim 2 , wherein the bottom plate comprises a shovel-shaped front edge substantially perpendicular to the two edges of the bottom plate for preventing the protection cover from scraping the flexible printed circuit board.

4. The electronic device according to claim 1 , wherein the main body comprises a first opening and the cap body comprises a second opening, the protection cover is coupled to the cap body via the second opening, and the flexible printed circuit board gets through the first opening and the second opening to connect with the main body and the cap body.

5. The electronic device according to claim 4 , wherein the main body comprises a concave portion adjacent to the first opening for receiving a part of the protection cover and fixing the protection cover on the main body when the cap body moves between the first position and the second position.

6. The electronic device according to claim 4 , wherein the main body comprises two opposite first opening side edges and one first opening front edge, wherein the two first opening side edges connect with the first opening front edge to form the first opening, wherein the first opening is substantially rectangular.

7. The electronic device according to claim 6 , wherein the concave portion comprises two opposite inner walls adjacent to the two first opening side edges respectively.

8. The electronic device according to claim 6 , wherein the main body further comprises two blocks disposed on the two first opening side edges respectively and adjacent to the first opening front edge for fixing the protection cover on the main body.

9. The electronic device according to claim 4 , wherein the cap body comprises two opposite second opening side edges, a second opening front edge, and a second opening rear edge, wherein the two second opening side edges connect with the second opening front edge and the second opening rear edge to form the second opening, wherein the second opening is substantially rectangular.

10. The electronic device according to claim 9 , wherein the protection cover is coupled to the two second opening side edges and capable of moving between the second opening front edge and the second opening rear edge.

11. The electronic device according to claim 1 , further comprising:

a two-section track structure disposed on an undersurface of the cap body and having a first track and a second track, wherein the first track and the second track form a straight track structure, and the first track is fixed on the cap body;

a hinge disposed on the cap body and connecting to the second track; and

a sliding element disposed on the main body and slidably coupled to the two-section track structure;

wherein as the cap body moves between the first position and the second position, the sliding element slides on the first track and the second track; as the cap body is in the second position, the sliding element is on the second track, and the cap body and the first track are capable of rotating with respect to the main body and the second track via the hinge.

12. The electronic device according to claim 1 , further comprising:

a keyboard disposed on an upper-surface of the main body.

13. The electronic device according to claim 1 , further comprising:

a display device disposed on an upper-surface of the cap body.

14. The electronic device according to claim 1 , wherein the electronic device is a portable device.

15. The electronic device according to claim 1 , wherein the electronic device is a handheld device.

16. The electronic device according to claim 1 , wherein the electronic device is a smart phone, a personal digital assistant (PDA), a mobile phone, or a ultra mobile personal computer (UMPC).